Refrigerant recovery unit with pure system
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United States of America Patent
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-
Jan 26, 1993
Grant Date -
N/A
app pub date -
Nov 5, 1991
filing date -
Nov 5, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refrigerant recovery apparatus has a feature for purging an air conditioning system component for cleaning. The air conditioning component will be connected into the recovery unit at a point where it will receive liquid refrigerant from the recovery unit. This liquid refrigerant comes from the storage container, with pressure being maintained by the use of the compressor. The air conditioning component connects to a purge container, which is separate from the storage container. The purge container has an outlet leading to an expansion valve for converting the purged refrigerant into a vapor. The vapor refrigerant leads back to a suction end of the recovery unit.
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